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MKV audio pops

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Dawn Dee
MKV audio pops
on Aug 24, 2010 at 10:11:39 pm

I have an issue with an mkv file in FCP. In VLC, the file plays perfectly, no pops or anything, but in FCP I get a popping, both in the viewer and canvas. I tried changing the audio rate to 41 khz...nothing. I tried some crossfades...nothing. The popping isn't as intermittent and regular as 41khz/44khz issues that I've had in prior projects, and this popping occurs within clips, not just at the beginnings or ends. Nothing looks out of the ordinary in the audio waveform. I've also tried rendering only as mixdown. Nope.

6 audio mono tracks,
H.264 compression
725.8 k/sec,
48.0 khz,
32 bit floating point audio format

Any ideas?


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Michael Gissing
Re: MKV audio pops
on Aug 24, 2010 at 11:51:41 pm

FCP should only ever have aif or wav uncompresed PCM audio at 48khz, 16 or 24 bit. It doesn't like anything else. All audio should be converted from various codecs to these two choices before they are imported into FCP and put in a timeline. Do it now before it gets uglier.

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